激光多普勒振动计用于水下声光通信

CORC > 上海光学精密机械研究所 > 中国科学院上海光学精密机械研究所 > 先进激光技术与应用系统实验室

	激光多普勒振动计用于水下声光通信; Laser Doppler Vibrometer for Acousto-Optic Communication
	贺岩 ; 王文奎 ; 夏文兵 ; 臧华国 ; 崔雪梅 ; 陈卫标 ; 马力
刊名	中国激光
	2007
卷号	34 期号:5 页码:703
关键词	激光技术 laser technique 激光多普勒振动计 laser Doppler vibrometer 声光通信 acousto-optic communication 零差探测 homodyne detection
ISSN号	0258-7025
其他题名	Laser Doppler Vibrometer for Acousto-Optic Communication
中文摘要	介绍了激光多普勒振动计(LDV)用于水下声光通信的应用背景,阐述了激光多普勒振动计的工作原理和两种相干检测方式。采用零差的相干探测方式,设计并实现了一套光纤结构的激光多普勒振动计。为了证明系统能够应用于水下声光通信,进行了对水下声源发出的声波频率和强度的探测实验。通过对实验数据的分析得出：第一,系统能够检测出水下声源发出的声波频率,对7 kHz附近的10个声波频率的测量标准偏差小于8 Hz; 第二,系统探测信号强度与水下声源发声的声压级成指数关系,对于水下目标通信所用的3.5 kHz和7 kHz声波频段的; This paper introduces the application background for developing an laser Doppler vibrometer (LDV) for underwater acoustic communication and expounds the principle of laser Doppler vibrometer and two coherent detection methods. Using the way of homodyne coherent detection, a fiber laser Doppler vibrometer is designed and completed. To prove the system can be used in underwater acousto-optic communications, with this system, the acoustic frequency and intensity of underwater sound source are detected. Through the analysis of experimental data, two conclusions are gotten: first, the system is able to detect the acoustic frequency of underwater sound source, the standard deviation of measuring ten acoustic frequencies near the frequency of 7 kHz is less than 8 Hz; second, the signal intensity of system detection is an exponential function of acoustic press level of underwater sound source. For the acoustic band of 3.5 kHz and 7 kHz used in underwater communications, the smallest sound press level of detection reached 146.2 dB and 150.8 dB respectively.
分类号	TN958.98
收录类别	EI
语种	中文
公开日期	2009-09-18
内容类型	期刊论文
源URL	[http://ir.siom.ac.cn/handle/181231/2815]
专题	上海光学精密机械研究所_先进激光技术与应用系统实验室
推荐引用方式 GB/T 7714	贺岩,王文奎,夏文兵,等. 激光多普勒振动计用于水下声光通信, Laser Doppler Vibrometer for Acousto-Optic Communication[J]. 中国激光,2007,34(5):703, 706.
APA	贺岩.,王文奎.,夏文兵.,臧华国.,崔雪梅.,...&马力.(2007).激光多普勒振动计用于水下声光通信.中国激光,34(5),703.
MLA	贺岩,et al."激光多普勒振动计用于水下声光通信".中国激光 34.5(2007):703.